Pack of 10 individually sealed KN-95 masks. FDA listed, and manufactured in facilities certified by the food and drug administration. Listed on CDC's Emergency Use Authorization (EUA) for use by Healthcare workers and responders to COVID-19 Tested by NPPTL and shown to have filtration rate of above 99%. Each mask is individually packed in a resealable bag Meets GB2626-2006 standard for KN95 particle face mask